File:Holtz Electrostatic Influence Machine II.jpg
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English: This machine was the first really powerful influence machine, invented in 1865, and was very popular, even requiring external excitation to start. By Dr. Antônio Carlos M. de Queiroz (in memoriam).
http://www.coe.ufrj.br/~acmq/holtz.html https://www.youtube.com/user/acmdq2007/videos |
| Date | |
| Source | Own work |
| Author | DrAntonioCarlosMdeQueiroz |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:36, 31 May 2021 | | 500 × 375 (25 KB) | DrAntonioCarlosMdeQueiroz (talk | contribs) | Uploaded own work with UploadWizard |
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